、<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			.red {
				color: red;
			}
			li:nth-child(2) {
				color: #00ff00;
			}
			#rgb {
				color: rgb(0,0,255);
			}
		</style>
	</head>
	<body>
		<ol>
			<li class="red">预定义的颜色值，如red,green,blue</li>
			<li>十六进制，如#FF0000</li>
			<li id="rgb">RGB代码，如红色可以表示为rgb(255,0,0)或rgb(100%,0%,0%)</li>
		</ol>
	</body>
</html>
